@ARTICLE
        { NNRtcs13,
	  AUTHOR = "G. Navarro and Y. Nekrich and L. Russo",
	  TITLE = "Space-Efficient Data-Analysis Queries on Grids",
	  JOURNAL = "Theoretical Computer Science",
	  YEAR = 2013,
	  VOLUME = 482,
	  PAGES = "60--72"
	}